Gas washer



June 30,1931. BERGFELD 1,812,767 I GAS WASHER 8 Filed May 16, 1928 v rotating centrifugal disks rotatablein oppo- Patented as so, last", I

" ire ESTATES time? KARL t9]? BERLIN,

ens wn'snnn Application med May 16,1928, Serial in. 278,225, and in Germany wfi mm 20, 19a.

Gas washers with centrifugal discs rotating in opposite directions to one another are known, in which the washing liquid is atomized or sprayed'in the formed a fine-mist, 5 the discs either being irrigated by the washing liquid or dipping into it. It has been found that in these washers, the mist produced is suficiently fine to produce the requisite washing action only in a relatively 10 small ortion of the interior.

Asu stantially more powerful formation of mist is obtained according to the invention hy irrigating the discs and at the same time causing them to dip into the liquid.

it Such a washer is diagrammatically illustrated in the accompanying drawings in.

which v Figure l is a vertical section through the washer and Figure 2 a plan, with the hood removed. in the drawings, 2 is the casing of the washer, 3 are the centrifugal discs mounted on spindles 4 rotating in opposite directions,

5 are the supply troughs which are constituted by sheet metal plates mounted onthe side walls of the washer and dependingto- "wards the center, a recess for each disc being provided in the said plates. ()verllow of the liquid is prevented by an outer flange at the be fed on to only the sides of the discs adjacent their centers from the lower ends of the plates.

The washing liquid is supplied to the troughs, projected q gal discs and atomized. Part of the washing liquid dropping from the walls collects inthe bot-tom of the casing 2 until the level of the liquid rises so high that the discs dip into it and it is thus further atomized. The portion of the liquid which drops from the walls back into the plate troughs is also atomized again until the liquid becomes enriched. The extent of treatment of the gases depends upon the quantity of the freshly introduced washing liguid and the speed of flow through the washer. v 7

What I claim is 4 1.- Ina gas washer parallel series of rapidly edges of each plate so that the liquid can upwards by the centrifusite directions; said disks dipping into a body of washing liquid; and irrigating means for feeding liquid to the sides of the disks at a point near the axis of rotation thereof.

2. In a gas washer, rapidly rotatingcen- 55.

trifu a1 discs rotating in opposite directions and ipping into a body of washing liquid for the formationof-a fine mist, means for-collecting the misty and irrigating the sides of the discs therewith. Y

3. In a gas washer, a casing having a washing liquid holding tank in its lower end, and having a relatively large spraying chamber above the tank through which the gases tobe washed are passed; centrifugal discs mountt5 ed "for rotation and dipping into the liquid; means for rapidly rotating the disks for torining a fine mist in the spraying chamber; and means for irrigating the sides of the disks I above the level of the liquid in the tank with to the washing liquid.

t. In a gas washer as set forth in claim 3, said irrigating means comprising troughs for collecting the drain from the walls of the "praying chamber, and discharging upon the tt sides of the disks. in testimony whereof I aiiix my signature.

' KARL lBERGFELD. 

